I am looking for a better solution for this. 1 way to do this would be to find top N values from each mappers and then find out the top N out of them in 1 reducer. I am afraid that this won't work effectively if my N is larger than number of values in my inputsplit (or mapper input).
Otherway is to just sort all of them in 1 reducer and then do the cat of top-N. Wondering if there is any better approach to do this ? Regards Praveenesh
